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“Impossible is just an opinion.” – 

Paulo Coelho


"The ridiculous to the sublime is but a step"

Mutual Respect and Support

For all the talk above about our view of you as a team member, it's important to know that more than anything we believe that whatever your contribution to Expansion, it falls flat if any fail to respect or support fellow team members.  We do not support discrimination of any sort, either during the hiring process or post hire on the basis of race, ethnicity, gender type, beliefs,.. hair style, sock wearing preferences;  It's a long list.  We seek to thrive in and through diversity and are dedicated to maintaining genuine attitudes of respect while doing our best to support and honor your uniqueness.


 – And while we're on it; 



We'd be remiss to mention what underlies the integrity of our work; Being accountable to one another in order to keep the integrity of our work at its highest.  We will go out of our way to ensure our goals stay in alignment with the values of Expansion Therapeutics mentioned above.   

The Silent, (absent) "I" in Team

Bring yourself to this professional outing.  "There is no "I" in Team" does resonate with appropriate equanimity  but we can't abide its limits.  If you're hired to be a part of this endeavor to cure major CNS diseases we'll need you to bring everything you have.  Stand up, say it, do it; and we'll be sure to support you in your vision same as you have come to support ours.   

Culture of Curiosity

If curios is not a state of being, we may not know what else it is.  So whatever else you may encounter as a part of the Expansion Therapeutics team, you can be sure to be both inspired and encouraged to give your curiosity a front-row seat.  Above all be sure not to keep it to yourself.  If you reverse Napoleon's logic, you'll have what we're after here:  

Read our Equal Opportunity statement  

Believe in Yourself

In Vivo Research Technician



  • Independently perform all in-vivo technical procedures including test article preparation, administration as well as survival surgical procedures in research rodents.

  • Perform and conduct dosing by oral gavage, intravenous, intraperitoneal, and subcutaneous routes, bleeding from the tail vein, cardiac puncture, vena cava, assessing health, and perform humane euthanasia.

  • Provide post-operative care in rodents to ensure proper analgesia and pain management.

  • Perform terminal blood collection and necropsy for organ harvest.

  • Partner and support other scientists to ensure flawless animal care and welfare is conducted throughout the research studies.

  • Review and adhere to all company standards, IACUC approved SOPs and required safety procedures.


  • Bachelor’s in biology, or other related scientific field with a minimum of 2+ years in an academic or industry setting.

  • Proven experience in small animal handling.

  • High proficiency in oral gavage (PO) route of administration is required. Experience with other routes of administration such as IP, SC, IT dosing is preferred.

  • Proficiency in blood collection by cardiac puncture and tissue collection at necropsy.

  • Deep understanding with stereotaxic surgery, performing ICV injections to specific brain regions.

  • Understanding with CSF collection in mouse models.

  • Experience performing behavioral tests to evaluate neurological disfunction in mice.


  • Excellent written and oral communication skills.

  • Ability to work independently and collaborate in a multi-disciplinary environment.

  • Critical thinker with a demonstrated ability to effectively collaborate cross functionally.

  • Success-oriented individual with relentless drive towards company and team goals and timelines.

  • Contribute to our company culture, sense of team and collaborative spirit.

  • Must be legally authorized to work in the United States.

Expansion Therapeutics fosters an inclusive company culture that values diverse talent, backgrounds, and experiences. We are proud to be an equal opportunity employer. All qualified applicants will receive consideration for employment without regard to race, color, religion, gender, gender identity, national origin, genetics, disability, age, sexual orientation, veteran status, or any other legally protected categories.

Reporting to the Senior Scientist I, the candidate will be responsible for performing preclinical-stage in vivo studies. This is a direct laboratory position based in our Jupiter, Florida research site.

*Title will be commensurate with experience.

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Boston, MA

Jupiter, FL